Create onap_oam_ext private network

Create onap_oam_ext private network for use by
vFWDT use case.

Change-Id: Icb02c6fe353c5aaebadd1e382959a9c30191cb17
Issue-ID: INT-993
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>
diff --git a/deployment/heat/onap-rke/env/windriver/onap-oom.env b/deployment/heat/onap-rke/env/windriver/onap-oom.env
index 53f1ae1..1c96592 100644
--- a/deployment/heat/onap-rke/env/windriver/onap-oom.env
+++ b/deployment/heat/onap-rke/env/windriver/onap-oom.env
@@ -13,6 +13,7 @@
   public_net_id: 971040b2-7059-49dc-b220-4fab50cb2ad4
 
   oam_network_cidr: 10.0.0.0/16
+  oam_ext_network_cidr: 10.100.0.0/16
 
   integration_gerrit_branch: master